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foreachmap.lua: add possibility of running code per s/w/s match with ':' shortcut

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Also, add a missing "pragma pack(pop)" to build.lua.

git-svn-id: https://svn.eduke32.com/eduke32@3185 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-11-15 21:09:48 +00:00
parent a46844e937
commit b5cead500a
2 changed files with 27 additions and 8 deletions
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1
polymer/eduke32/source/lunatic/build.lua
View file

@ -56,6 +56,7 @@ typedef struct
int16_t ang, owner, xvel, yvel, zvel;
int16_t lotag, hitag, extra;
} spritetype;
#pragma pack(pop)
]]
local C = ffi.C

34
polymer/eduke32/source/lunatic/foreachmap.lua
View file

@ -14,6 +14,9 @@
-- message is printed to stderr.
-- Finally, if there is a .finish field in the module, it is run with no args.
-- forxcode example: print sprite numbers with lotag < -1 (interpreting lotag it as signed),
-- and for each matching sprite also print its lotag and picnum:
-- ./findmaps.sh ~/.eduke32/ "sprite: .lotag < -1 :: io. write(', '.. .lotag .. ' ' .. .picnum)"
local B = require "build"
local string = require "string"
@ -22,9 +25,9 @@ local os = require "os"
if (#arg < 1) then
local wr = function(s) io.stdout:write(s) end
wr("Usage: ./foreachmap <module[.lua]> [init args...] <filename.map> ...\n")
wr(" ./foreachmap -e\"some_lua_code ...\" <filename.map> ...\n")
wr(" ./foreachmap -e\"[sector|wall|sprite]: <condition on .<field>>\" <fn.map> ...\n\n")
wr("Usage: ./foreachmap.lua <module[.lua]> [init args...] <filename.map> ...\n")
wr(" ./foreachmap.lua -e\"some_lua_code ...\" <filename.map> ...\n")
wr(" ./foreachmap.lua -e\"[sector|wall|sprite]: <condition on .<field>>\" <fn.map> ...\n\n")
wr("In the second form, the code is run as body of a function(map, fn)\n")
wr("and num{sectors,walls,sprites} and {sector,wall,sprite} do not\n")
wr("need to be qualified with the \"map.\" prefix.\n")
@ -32,7 +35,8 @@ if (#arg < 1) then
wr("satisfying a certain condition (see example below)\n\n")
wr("Examples: ./foreachmap.lua -e\"if map.numbunches==1 then print(fn) end\" ~/.eduke32/*.map\n")
wr(" ./foreachmap.lua -e\"sprite: .picnum==10 and .lotag==2563\" *.map\n")
wr(" ./foreachmap.lua -e\"sprite:: ... -- (only prints the file names)\n\n")
wr(" ./foreachmap.lua -e\"sprite:: ... -- (only prints the file names)\n")
wr("(See foreachmap.lua for an example of the \"forxcode\" feature.)\n\n")
return
end
@ -46,13 +50,27 @@ if (modname:sub(1,2) == "-e") then
local b, e, what = body:find("^([a-z]+)::?")
if (what) then
local onlyfiles = (body:sub(e-1,e)=="::") -- "::" means "only list files" (like grep -l)
body = body:sub(e+1)
body = body:gsub("%.[a-z]+", what.."[i]%0")
body = body:sub(e+1) -- clip off "bla::"
body = body:gsub("%.[a-z]+", what.."[i]%0") -- e.g. .lotag --> sprite[i].lotag
local perxcode
-- look for additional "print" code to be executed for each match
b, e, perxcode = body:find("::(.*)")
if (perxcode) then
body = body:sub(1,b-1)
if (onlyfiles) then
error("Per-x code can only be used with the ':' syntax (list each match)")
end
else
perxcode = ""
end
body =
"for i=0,num"..what.."s-1 do\n"..
" if ("..body..") then\n"..
(onlyfiles and "print(fn); return\n" or "print(fn..': '..i)\n") ..
" end\n"..
(onlyfiles and "io.write(fn); return\n" or "io.write(fn..': '..i)\n") ..
perxcode .. "io.write('\\n')"..
"\n end\n"..
"end\n"
end